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CN1743114A - Riving knife assembly for table saws - Google Patents

Riving knife assembly for table saws Download PDF

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Publication number
CN1743114A
CN1743114A CNA2005100913913A CN200510091391A CN1743114A CN 1743114 A CN1743114 A CN 1743114A CN A2005100913913 A CNA2005100913913 A CN A2005100913913A CN 200510091391 A CN200510091391 A CN 200510091391A CN 1743114 A CN1743114 A CN 1743114A
Authority
CN
China
Prior art keywords
saw
assembly
main body
electric tool
support
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CNA2005100913913A
Other languages
Chinese (zh)
Inventor
罗伯特·S·格雷特
罗伯特·库斯米尔斯基
小马克·D·米勒
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Black and Decker Inc
Original Assignee
Black and Decker Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Black and Decker Inc filed Critical Black and Decker Inc
Publication of CN1743114A publication Critical patent/CN1743114A/en
Pending legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27B—SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
    • B27B5/00—Sawing machines working with circular or cylindrical saw blades; Components or equipment therefor
    • B27B5/16—Saw benches
    • B27B5/165—Convertible sawing devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27G—ACCESSORY MACHINES OR APPARATUS FOR WORKING WOOD OR SIMILAR MATERIALS; TOOLS FOR WORKING WOOD OR SIMILAR MATERIALS; SAFETY DEVICES FOR WOOD WORKING MACHINES OR TOOLS
    • B27G19/00—Safety guards or devices specially adapted for wood saws; Auxiliary devices facilitating proper operation of wood saws
    • B27G19/08—Accessories for keeping open the saw kerf, e.g. riving knives or wedge plates
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/768—Rotatable disc tool pair or tool and carrier
    • Y10T83/7684—With means to support work relative to tool[s]
    • Y10T83/773—Work-support includes passageway for tool [e.g., slotted table]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/849—With signal, scale, or indicator
    • Y10T83/853—Indicates tool position
    • Y10T83/855—Relative to another element
    • Y10T83/856—To work-engaging member

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Sawing (AREA)
  • Knives (AREA)
  • Details Of Cutting Devices (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Dovetailed Work, And Nailing Machines And Stapling Machines For Wood (AREA)
  • Passenger Equipment (AREA)

Abstract

A power tool having a base assembly, a table supported by the base assembly, a saw assembly supported by the table, and a riving knife assembly attached to the saw assembly. The riving knife has a body with an edge placed adjacent to a blade, and a bracket connected to the body. The bracket is inserted into a support assembly disposed on the saw assembly.

Description

The chopper assembly that is used for bench saw
Technical field
The present invention relates generally to a kind of chopper assembly that is used for bench saw, more specifically to a kind of chopper assembly that is used for the combination saw of bench saw/mitre saw.
Background technology
In the bench saw field, well-known, bench saw saw blade back is provided with a kind of chopper assembly.The chopper assembly generally is difficult to dismantle from bench saw.Therefore an object of the present invention is to provide a kind of improved chopper assembly.
Summary of the invention
According to the present invention, use a kind of improved supporting component.The workbench that electric tool has base assembly, supported by base assembly, the saw componet that supports by workbench and be connected to chopper assembly on the saw componet, described chopper comprise main body with edge that contiguous saw blade is provided with and with main body on the support that links to each other, its medium-height trestle insertion is arranged in the supporting component on the saw componet.
By following accompanying drawing and detailed description, other characteristics of the present invention and advantage will be conspicuous.
Description of drawings
Practical application in accordance with the principles of the present invention, accompanying drawing shows the preferred embodiments of the present invention, wherein:
Fig. 1 shows the combination saw of bench saw/mitre saw of the present invention, and Figure 1A-1B is respectively the side view of the combination saw of bench saw/mitre saw in mitre saw and bench saw pattern;
Fig. 2 is the perspective view of chopper assembly of the present invention;
Fig. 3 is the fragmentary, perspective view along the line III-III of Fig. 2;
Fig. 4 is arranged on the perspective view of the chopper assembly in the combination saw of bench saw/mitre saw;
Fig. 5 is the fragmentary, perspective view that is installed to the saw blade guard assembly in the chopper assembly; And
Fig. 6 is along the saw blade guard assembly of the median plane of the main body of chopper assembly and the partial sectional view of chopper assembly.
The specific embodiment
With reference now to accompanying drawing, describe the present invention, wherein identical Reference numeral is represented identical parts.With reference to figure 1, the combination saw 100 of bench saw/mitre saw can comprise base assembly 10, the workbench 11 that is supported by base assembly 10 and the saw componet 20 that is supported by workbench 11.Saw componet 20 can comprise the gudgeon 21 that is arranged on the workbench 11, be pivotably connected to pivotal arm 22 on the gudgeon 21, supported and driven the motor 24 of saw blade 23 by arm 22.Arm 22 also supports top saw blade protector 27, and this protector covers the top of saw blade 23.Bottom saw blade protector 25 pivots and is connected on the top saw blade protector 27.Auxiliary saw blade protector 26 is pivotably connected on the bottom saw blade protector 25.
Workbench 11 preferably pivots via junction 15 and is connected on the base assembly 10, with convenient workbench 11 on the direction of Figure 1A the time, saw componet 20 can be as mitre saw, and just saw componet 20 can pivot downwards towards workbench 11, is placed on workpiece on the workbench 11 with cutting.
On the other hand, when workbench 11 rotated to the direction of Figure 1B via junction 15, saw was 100 as bench saw, promptly saw componet 20 by workbench 11 support and be arranged on workbench 11 below.In this location, saw blade 23 extends through workbench 11, so that the user can be placed on workpiece on the workbench 11, and it is promoted towards saw blade 23, so that cutting.
The present invention that those skilled in the art describe below as can be known may be used in the non-combination bench saw.
Base assembly 10 preferably has at least one and takes turns 13.
Base assembly 10 also can support four leg assemblies 30.Leg assembly 30 preferably pivots and is connected on the base assembly 10.
Can work as bench saw and use because saw 100, can work as mitre saw again and use, therefore a kind of chopper assembly 50 preferably is provided, this assembly is installed when using as bench saw easily when sawing 100, dismantles easily when using as mitre saw when sawing 100.
With reference to figure 2-5, chopper assembly 50 comprises the main body 51 with crooked saw edge 51B that contiguous saw blade 23 is provided with.
Support 52 is connected on the main body 51.Support 52 can insert in the groove of supporting component 56.Thumbscrew 57 supporting component 56 that is threaded.Adopt this structure, the user can promote bottom saw blade protector 25, allows the user that support 52 is inserted among the slit 56S.The user locks support 52 (and chopper assembly 50) in place by rotation thumbscrew 57 then, and this thumbscrew 57 promotes supports 52 to contact with supporting component 56 and/or 27 lockings of top saw blade protector.
Spring 58 can be arranged between the knob and supporting component 56 of thumbscrew 57.Spring 58 preferably can prevent thumbscrew 57 because vibration, as when chopper assembly not in place the time, and screws out.
Supporting component 56 preferably has upper and lower wall 59, and described wall forms the tapered portion that is connected with support 52.The composition surface of support 52 and wall 59 also can be the inclined-plane, also forms dovetail and engages.This conical engagement is located chopper 50 automatically along vertical and trunnion axis.
Machined is preferably used in zone between the wall 59 (wall of supporting component 56 and/or top saw blade protector 27).When thumbscrew 57 was tightened, support 52 was pushed into this machined region along the 3rd.When chopper assembly 50 was installed on the saw 100, this layout can guarantee that preferably chopper assembly 50 is arranged on same position, thereby does not need to readjust.
Those skilled in the art ideally should relatively be provided with saw edge 51B near saw blade 23 places as can be known.Therefore, saw edge 51B can be regulated with respect to support 52, when inserting supporting component 56 with convenient support 52, saw edge 51B is in the desired position.Those skilled in the art's main body 51 as can be known are connected on the support 52 via screw 54, by on main body 51 and/or support 52 slit being set, thereby provide adjustability so that screw 54 can move along these slits.
As selectable scheme, plate 53 can be folded between main body 51 and the support 52.Can provide adjustability by on main body 51, support 52 and/or plate 53, slit being set, so that screw 54 is moved along these slits.Main body 51 preferably moves with respect to support 52 along axle A and/or B.Slit is preferably disposed in main body 51 and the support 52.Screw 54 passes described slit and enters in the plate 53.Described slit preferably is perpendicular to one another, thereby carries out independent regulation with its axle separately.
The place of a placement chopper assembly 50 preferably is provided.With reference to figure 1 and 4, base assembly 10 can have boss (bosses) 12, to hold chopper assembly 50.The rotatable retainer 11 that has jut 11R can pivot and be connected on the base assembly 10.Retainer 11 is preferably between the primary importance and the second place and moves, in described primary importance, jut 11R and chopper assembly 50 overlapping (shown in the solid line of Fig. 4), thereby hold it in suitable position, in the described second place, projection 11R not with chopper assembly 50 overlapping (shown in the dotted line of Fig. 4), thereby allow the user from base assembly 10 dismounting chopper assemblies 50.
Those skilled in the art remain on chopper assembly 50 other device of correct position as can be known, as spring clip or magnet, can replace retainer 11, and can think that itself and the present invention are equal to.
It will be favourable that those skilled in the art are provided with the saw blade guard assembly 60 that can be installed on the chopper assembly 50 as can be known.With reference to figure 1 and 5-6, saw blade guard assembly 60 comprises the main body 61 that is preferably general hollow, is connected to the sawdust discharge pipe 62 on the vacuum hose, is used for removing the sawdust and the fragment that produce at cutting operation process.
Main body 61 1 ends can have two divided portion 61E, are used to hold the main body 51 of chopper assembly 50.Bolt 63 extends through two divided portion 61E.Thumbscrew 64 can be arranged on an end of bolt 63, is used to clamp main body 51 and is inserted in part between the divided portion 61E.Main body 61 also can have the boss 65 that is arranged on below the bolt 63.
The main body 51 of chopper assembly 50 preferably has the slit 51S of approximate vertical and the arcuate slots 51AS that adjacent slots 51S is provided with.Those skilled in the art's bolt 63 and boss 65 as can be known preferably are contained in respectively in slit 51S and the 51AS.Therefore, should guarantee that ideally distance between slit 51S and the 51AS is substantially equal to the distance between bolt 63 and the boss 65.
Boss 65 preferably has screw, and this screw is by boss 65 and the hole in opposite side is threaded main body 61.This just increases the intensity of boss 65.
Adopt this layout, the user inserts slit 51S (thereby main body 61 is assembled on the main body 51) with bolt 63.Boss 65 can be arranged in the arcuate slots 51AS or near it automatically.The user is around bolt 63 rotating main bodies 61 then, so that boss 65 moves along arcuate slots 51AS, up to arriving the desired position, perhaps boss 65 contacts the end of arcuate slots 51AS.The user is by rotation thumbscrew 64 locking saw blade guard assemblies 60 then.
Those skilled in the art can carry out other increases or replacement to disclosed device in the literary composition.Yet all these increases and/or change all can be thought and are equal to the present invention.

Claims (9)

1, a kind of electric tool, it comprises:
Base assembly;
Workbench by described base assembly support;
By the saw componet that described workbench supports, described saw componet comprises motor, the saw blade that is driven by described motor and the top saw blade protector that covers described saw blade top; And
Be connected to the chopper assembly on the described saw componet, described chopper assembly comprises the main body at the edge with contiguous saw blade setting and is connected to support on the described main body;
Wherein said support inserts in the supporting component that is arranged on the saw blade protector of described top.
2, electric tool as claimed in claim 1 also comprises the protector on the main body that is connected to described chopper assembly.
3, electric tool as claimed in claim 2, wherein said protector is pivotably connected on the described main body.
4, electric tool as claimed in claim 1 also comprises and passes the screw that described supporting component extends.
5, electric tool as claimed in claim 4 also comprises the spring that is arranged between described screw and the described supporting component.
6, electric tool as claimed in claim 1, wherein said supporting component have the wall portion that forms taper.
7, electric tool as claimed in claim 6, wherein said tapered portion is connected in described support.
8, electric tool as claimed in claim 1, wherein said saw componet is pivotably connected on the described workbench via gudgeon.
9, electric tool as claimed in claim 1, the position of wherein said main body is adjustable with respect to described support.
CNA2005100913913A 2004-07-13 2005-07-13 Riving knife assembly for table saws Pending CN1743114A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US58762204P 2004-07-13 2004-07-13
US60/587,622 2004-07-13

Publications (1)

Publication Number Publication Date
CN1743114A true CN1743114A (en) 2006-03-08

Family

ID=35124598

Family Applications (1)

Application Number Title Priority Date Filing Date
CNA2005100913913A Pending CN1743114A (en) 2004-07-13 2005-07-13 Riving knife assembly for table saws

Country Status (11)

Country Link
US (1) US20060011034A1 (en)
EP (1) EP1616681B1 (en)
CN (1) CN1743114A (en)
AT (1) ATE369953T1 (en)
AU (1) AU2005202907B2 (en)
DE (1) DE602005001985T2 (en)
DK (1) DK1616681T3 (en)
ES (1) ES2289627T3 (en)
PL (1) PL1616681T3 (en)
PT (1) PT1616681E (en)
TW (1) TWI354620B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107530797A (en) * 2015-03-12 2018-01-02 罗伯特·博世有限公司 The bench saw of cutter shaft with electrical isolation

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US6709560B2 (en) * 2001-04-18 2004-03-23 Biosource, Inc. Charge barrier flow-through capacitor
US7437981B2 (en) * 2005-11-21 2008-10-21 Robert Bosch Gmbh Modular guard system and apparatus for a power saw
US7600456B2 (en) 2005-11-21 2009-10-13 Robert Bosch Gmbh Modular guard system for a power saw
US8091456B2 (en) 2008-03-25 2012-01-10 Power Tool Institute Safety devices for saws
US8082826B2 (en) 2008-03-25 2011-12-27 Power Tool Institute Saw accessories and clamp for use therewith
US8127648B2 (en) * 2008-07-31 2012-03-06 Robert Bosch Gmbh Table saw guard system
CN101733478B (en) * 2009-12-03 2014-01-08 青岛地恩地机电科技股份有限公司 Bench saw transmission mechanism
CN203141594U (en) * 2013-01-29 2013-08-21 何财柏 Dual-purpose electric saw
EP3191272A4 (en) * 2014-09-09 2018-02-07 Robert Bosch GmbH Table saw riving knife mounting arrangement
US12083613B2 (en) 2022-10-18 2024-09-10 Techtronic Cordless Gp Track saw including plunge lockout mechanism

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107530797A (en) * 2015-03-12 2018-01-02 罗伯特·博世有限公司 The bench saw of cutter shaft with electrical isolation
US10786854B2 (en) 2015-03-12 2020-09-29 Robert Bosch Tool Corporation Table saw with electrically isolated arbor shaft
CN107530797B (en) * 2015-03-12 2023-01-13 罗伯特·博世有限公司 Bench saw with electrically isolated arbor

Also Published As

Publication number Publication date
EP1616681B1 (en) 2007-08-15
PL1616681T3 (en) 2007-11-30
DE602005001985D1 (en) 2007-09-27
AU2005202907B2 (en) 2010-06-03
DE602005001985T2 (en) 2008-04-30
TWI354620B (en) 2011-12-21
ES2289627T3 (en) 2008-02-01
PT1616681E (en) 2007-11-23
US20060011034A1 (en) 2006-01-19
TW200618974A (en) 2006-06-16
EP1616681A1 (en) 2006-01-18
AU2005202907A1 (en) 2006-02-02
ATE369953T1 (en) 2007-09-15
DK1616681T3 (en) 2007-12-17

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